Estimation of the relationship between ECG and SpO2 signals of human
Corressponding author's email:
nghiant@hcmute.edu.vnKeywords:
SpO2 signal, ECG signal, Savitzky-Golay filter, Pan-Tompkins algorithm, relationship of ECG and SpO2 signalsAbstract
Human biomedical signals measured at the same time play an important role in the monitor, analysis, and diagnosis. In this paper, an estimation of the relationship between ECG and SpO2 signals is proposed. In particular, the ECG and SpO2 signals are collected from subjects using a multiparameter acquisition device at the same time, in which each subject performs two scenarios, inlcunding rest and running tasks in five minutes. In addition, the ECG and SpO2 are processed to remove artifacts using a Savitzky-Golay filter. Therefore, a Pan-Tompkins algorithm is applied to determine the QRS complex in the ECG signal and then its heart rate is calculated. In addition, the average of SpO2 values in the SpO2 signal is obtained. For estimation of the relationship between ECG and SpO2 signals, a ratio between the heart rate and the SpO2 average was calculaled. Experimental results show that values between the heart rate and SpO2 climb moderately in case of running these scenarios. Moreover, the ratio of heart rate and the mean of SpO2 fluctuate slightly in both of the rest and running scenarios. The results in this paper are useful for researching and diagnosing when we use both of the ECG and SpO2 signals on a subject at the same time and show the effectiveness of the proposed method.
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